Question 5
(a) A mobile phone displays check your configuration settings when a user attempts to access the internet.
(i) State two possible causes of this problem;
(ii) Give two solutions to this problem.
(b) List in sequential order, the steps involved in servicing a mobile phone.
The Candidates that did this question performed poorly as they were not able to provide reasonable answers to the questions asked.
Observation
The expected answers are:
(a) (i) Causes of ‘check your configuration settings’ error
- Wrong network configuration settings
- Missing / no network configuration settings
- Solutions to the identified causes of the error in 5(a)(i)
- Send appropriate code to service provider to get correct network configuration settings
- Manually input the correct network configuration settings
- Contact service provider to request for network configuration settings
(b) Steps involved in servicing a mobile phone
- Turn / power OFF the phone
- Remove SIM card, memory card and battery (if any)
- Uncouple the phone using appropriate tools/equipment
- Remove delicate detachable components on the PCB
- Use ESD soft brush and recommend thinner (isopropyl alcohol) to clean the PCB
- Turn / power ON the rework station/hot air blower and set it to the appropriate temperature range (low heat and low air) for complete dryness of the PCB
- Allow the PCB to cool and couple the phone appropriately
- Turn / power ON the phone to test for functionality